Sound Devices 442, User Manual And Technical Information, Page: 6 / 34

442/442N User Guide and Technical Information
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v. 5.07 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.
Front Panel Descriptions
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1)
Channel Fader
Primary control for adjusting the input
level of each channel during operation.
Ranges from Off to +15 dB. Nominal
setting is in the middle (0 dB).
2)
Channel Pan
Controls the Left/Right balance of the
input signal to the outputs. Signal is 3
dB greater when panned hard left and
right.
3)
LINK LED
Indicates that channels 1 and 2 are
linked as a stereo pair, set via the Link
Switch on the input panel.
4)
Channel 2 Polarity Reverse
Reverses the polarity of input channel 2.
5)
PFL (Solo)
Pre-fade Listen. Sends the selected
channel's post-gain/pre-fade signal
to the headphone monitor for
troubleshooting and gain staging. Does
not affect master output signal.
6)
Peak LED
Indicates that the input signal is 3 dB
from clipping. If the LED illuminates,
gain is set too high.
7)
Input Limiter LED
Illuminates orange when the Input
Limiter is active, LED intensity signifi es
amount of limiting. If signifi cant
limiting occurs, reduce the level of the
Gain Trim.
8)
Output Meter
40 segment output meter. For Peak
setting, the markings indicate output
level (at line-level) in dBu. For VU
setting, markings indicate Volume Units.
See Appendix A for 442N scale.
9)
Slate Mic / Tone Oscillator
Activates the slate microphone in the
left position (momentary) and activates
the tone oscillator in the right position
(latched).
10)
LED Brightness Button
Toggles between the four LED
brightness settings.
11)
PK/VU Button
Toggles between the available output
meter ballistics—VU, PPM (Peak),
combined VU/PPM, or VU-PPM Hold.
See Metering Hold down the PK/VU
button while powering on the mixer to
access the Setup Menu.
12)
Battery Check Button
Views the battery level on the output
meter. Left (top) meter indicates internal
battery level, right (bottom) meter
indicates external battery level. See
Powering.
13)
Power LED
Illuminates when unit is powered.
Flashes when power supply is low. With
external DC supply the LED fl ashes at
select voltage. See Powering.